Gas device.



E. C. OBER MEYER. GAS DEVICE.

AffPLlCATlON FILED MAR. 11. 1916.

1,1 89,994. Patentd July 4, 1916.

[56. 066F172: 61- Inv ntor Attorneys burner, and when a valve in the supply pipe NITED s'ra'rns PATENT OFFICE.

EDWARD C. OBERMEYER, OF NESSEN CITY, MICHIGAN.

GAS DEVICE.

Specification of Letters Patent.

Patented July 4., 1916.

Application filed March 11, 1916. Serial No. 83,599.

T 0 all 1.0720771. "it may concern Be itlknown that I, Eowann C. OBER- MEYER, a CltlZQH of the United States, residing at Nessen City, in the county of Benzie and State of Michigan, have invented a new and useful Gas Device, of which the followto the burner is in an open position, the gas will be ignited automatically at the burner.

Specifically, the invention aims to provide novel means whereby a plurality ot-electrical terminals and conducting members may beheld in operative relation to the burner.

It is within the province of the disclosure to improve generally and to enhance the utility of devices'of' that type to which the present invention appertains. 1

. With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, {it being understood that changes in the precise embodiment of the ii vention herein disclosed can be made wiyhin the scope of what is claimed, without dleparting from the spirit of the invention. 5

In the accompanying drawings :-Figure 1 shows in side elevation, a burner whereunto the device forming the subjet matter of this application has been attachbd, parts appearing in section; Fig. 2 is a sectional View of the carrying member, the circuits being indicated diagrammatically; Fig. 3 is a fragmental section showing the slide and par s associated therewith; and Fig. 4 is a diagrammatic view wherein the device forming the subject matter of this application is shown in operative relation to a burner of the type used on a gas stove.

In the accompanying drawings, the numeral 1 indicates a gas pipe inwhich is journaled a rotary valve 2 adapted to control the flow of gas through the pipe 1. Assembled with the pipe 1 is an insulating casing 3 bearing a terminal 4t adapted to coact with aswitch blade 5 on the valve 2. The construction is such that when the valve 2 the pipe 1, the switch blade- 5 stops theflow of gas through the pipe 1, the blade 5 will be out of Contact with the terminal 1. The numeral (3 indicates a burner of any desired sort, communicating with thegas pipe 1.

Mounted on the pipe 1 and held thereto by a clamp 7 isa bracket 8 supporting an insulating carrying member 9. Mounted transversely in the carryii'ig member 9 is a terminal 10- provided at its outer end, as

' shown atFigJ3, with a socket 11in which is mounted to reciprocate, transversely of the .socket, a slide 12 having an opening 11 disposed opposite to a seat 15 fashioned in the end of the terminal 10. A spring 16 is engaged with the seat 15 i andwith the opening 14:. In-the slide 12iis formed a notch '17 defining spaced shoulders 18 and 19.

Mounted in the insulating carrying member 9 1s a conducting terminal 20 to which is attached a thermo-expansible arm 21 teruninated in a rectangularly disposed end 22,

the arm being cruciformin cross section, in order that it may present a large amount of surface to the burner 6. The end 22 of the arm 21 projects into the socket 11 and enters the notch 1'7 in the slide 12. That side oiithe end 22 of the arm 21 which is adjacent the shoulder 19 ot' the slide 12 carries an insulating piece 23.

The numeral 2%. denotes a third terminal located between the terminals 10 and 20 and mounted in the member9.

The numeral 27 indicates a conductor one end of which is attached to; the terminal 20, the other end of which is attached to the terminal 10. Inter-posed in .the conductor 27 is a source of electrical energy indicated at 25. Also interposed in the conductor 27 is the primary winding 26 of an induction coil. The secondary winding of the induction coil is shown at 28. From one posed in the conductor 29. From the, other end of the winding 28, leads a conductor 30 which is connected to the conductor 27. Interposed in the conductor 27 is an interrupter 31.

The electrical circuits above outlined are not insisted upon, and may be changed without jeopardizing the utility of the invention.

In practical operation, when the valve 2 is turned to cut off the fiowof gas through is out of contact with the terminal 4. The end 22 ot the arm 21 bears against the shoulder 18 gages the terminal 4 and there is established a circuit comprising the battery 25, the primary winding 26, the conductor 27, the terminals 10 and 20, the arm 21, its end theslide 12 (21 shown in -Fig. 3),-the socket 11 and the spring 16. Aucurrc'nt is induced in the second winding :28 and there is established acircuit comprising the conductor 2-), a part of the conductor 27, the terminal 21, the arnr 21 and the terminal 20. A spark will now ljump from the terminal. 2i to the arm 21- and the gas burner will be ignited. Due to the heat of the flame at the burner 6. the arm 21.will expand thus moving the end 22 of the arm outof contact with the shoulder 18. The circuit including the primary winding 26 therefore willbe broken and no spark will ump} from the terminal 2-1 to the. arm 21. If the flame at 'the burner 6 is extinguished accidentally.

then the arm 21 will contractuntil the end 22 of the arm engages the shoulder 18 of the slide 12, whereupon the gas will be ignited automatically.

The reason for providingthe slide 12is in order that the arm 21 may expand, the insulatingpiece 23 on the end'QQ of the arm engaging the shoulder 19. on the slide, and ctn seipieiitly the c1 rcu1t 1s not closed. The

' function of the spring, 16 is to restore the slide 12 to the position f Fig. should the slide be carried to the right, in Fig. 8. when the arm 21 expands.

The device forming the subject matter of this application need not be en 1plo ved in connection with an illuminating.burner as shown in Fig. 1. In Fig. l. the structure is shown diagrammaticall in operative. relation to a burner 32 which may constitute a part of a heater.

connected with the 'iilst terminal: a .mounted to reciprocate on the second tcrminail and p l'OYltlttl 1th spaced shorldcrs bc- Having thus described the invention, what to coact with the second terminal, the third terminal being disposed in close relation to. the'arm. I 4 i 2. In a device of the class described, a sup-' port; a first terminal? -arri'ed by the support, a second terminal carried by the support; a

third terminal carried by the sup 'iort'and located between the.tir. tand second terminals," a thermo-expansiblc arm connected with the first terminal. the third terminal beingdisposedadjacent the arm: and a slide mounted to reciprocate on the second tcrmi" nal. the end of the arm being intcrcngagcd with the slide.

In a device of the class described, ,a. supportia first terminal carried by the sup port; a second terminal carried by the support; a third terminal carried by the "support and disposed betweenv the first and second terminals: a thcrmo-cxpansi'blc arm sl'idc tween which the arm is located: aninsula-ting element carried by th arm and adapted to coact'with one shoulder: and spring 11]21115 for controlling the movement, ot the slide.

In. tcstin'iony that I claim the foregoingas my own, I havc he rcto allixcd'nrv signature .in the presence of two witnesses.

' llDllKillD OllEllM'EYER.

ilitnesscs:

E. 1L lnxoxl- G. Burr. 

